1/* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#ifndef ANDROID_HARDWARE_EFFECT_HAL_HIDL_H 18#define ANDROID_HARDWARE_EFFECT_HAL_HIDL_H 19 20#include <android/hardware/audio/effect/2.0/IEffect.h> 21#include <media/audiohal/EffectHalInterface.h> 22#include <fmq/EventFlag.h> 23#include <fmq/MessageQueue.h> 24#include <system/audio_effect.h> 25 26using ::android::hardware::audio::effect::V2_0::EffectBufferConfig; 27using ::android::hardware::audio::effect::V2_0::EffectConfig; 28using ::android::hardware::audio::effect::V2_0::EffectDescriptor; 29using ::android::hardware::audio::effect::V2_0::IEffect; 30using ::android::hardware::EventFlag; 31using ::android::hardware::MessageQueue; 32 33namespace android { 34 35class EffectHalHidl : public EffectHalInterface 36{ 37 public: 38 // Set the input buffer. 39 virtual status_t setInBuffer(const sp<EffectBufferHalInterface>& buffer); 40 41 // Set the output buffer. 42 virtual status_t setOutBuffer(const sp<EffectBufferHalInterface>& buffer); 43 44 // Effect process function. 45 virtual status_t process(); 46 47 // Process reverse stream function. This function is used to pass 48 // a reference stream to the effect engine. 49 virtual status_t processReverse(); 50 51 // Send a command and receive a response to/from effect engine. 52 virtual status_t command(uint32_t cmdCode, uint32_t cmdSize, void *pCmdData, 53 uint32_t *replySize, void *pReplyData); 54 55 // Returns the effect descriptor. 56 virtual status_t getDescriptor(effect_descriptor_t *pDescriptor); 57 58 // Free resources on the remote side. 59 virtual status_t close(); 60 61 // Whether it's a local implementation. 62 virtual bool isLocal() const { return false; } 63 64 uint64_t effectId() const { return mEffectId; } 65 66 static void effectDescriptorToHal( 67 const EffectDescriptor& descriptor, effect_descriptor_t* halDescriptor); 68 69 private: 70 friend class EffectsFactoryHalHidl; 71 typedef MessageQueue< 72 hardware::audio::effect::V2_0::Result, hardware::kSynchronizedReadWrite> StatusMQ; 73 74 sp<IEffect> mEffect; 75 const uint64_t mEffectId; 76 sp<EffectBufferHalInterface> mInBuffer; 77 sp<EffectBufferHalInterface> mOutBuffer; 78 bool mBuffersChanged; 79 std::unique_ptr<StatusMQ> mStatusMQ; 80 EventFlag* mEfGroup; 81 82 static status_t analyzeResult(const hardware::audio::effect::V2_0::Result& result); 83 static void effectBufferConfigFromHal( 84 const buffer_config_t& halConfig, EffectBufferConfig* config); 85 static void effectBufferConfigToHal( 86 const EffectBufferConfig& config, buffer_config_t* halConfig); 87 static void effectConfigFromHal(const effect_config_t& halConfig, EffectConfig* config); 88 static void effectConfigToHal(const EffectConfig& config, effect_config_t* halConfig); 89 90 // Can not be constructed directly by clients. 91 EffectHalHidl(const sp<IEffect>& effect, uint64_t effectId); 92 93 // The destructor automatically releases the effect. 94 virtual ~EffectHalHidl(); 95 96 status_t getConfigImpl(uint32_t cmdCode, uint32_t *replySize, void *pReplyData); 97 status_t prepareForProcessing(); 98 bool needToResetBuffers(); 99 status_t processImpl(uint32_t mqFlag); 100 status_t setConfigImpl( 101 uint32_t cmdCode, uint32_t cmdSize, void *pCmdData, 102 uint32_t *replySize, void *pReplyData); 103 status_t setProcessBuffers(); 104}; 105 106} // namespace android 107 108#endif // ANDROID_HARDWARE_EFFECT_HAL_HIDL_H 109